v3.23.2
Leases
6 Months Ended
Jun. 30, 2023
Leases [Abstract]  
Leases Leases
Our building leases are comprised of office and laboratory space under non-cancelable operating leases. These lease agreements have remaining lease terms of approximately five years and contain various clauses for renewal at our option. The renewal options were not included in the calculation of the operating lease assets and the operating lease liabilities as the renewal options are not reasonably certain of being exercised. The lease agreements do not contain residual value guarantees.
The components of lease expense and other information related to leases were as follows:
Three Months Ended
June 30,
Six Months Ended
June 30,
(In thousands)2023202220232022
Operating lease costs$3,806 $3,806 $7,613 $7,613 
Cash paid for amounts included in the measurement of operating lease liabilities$4,544 $4,414 $9,064 $8,190 
We have not entered into any material short-term leases or financing leases as of June 30, 2023.
In arriving at the operating lease liabilities as of June 30, 2023 and December 31, 2022, we applied the weighted-average incremental borrowing rate of 5.7% for both periods over a weighted-average remaining lease term of 4.7 and 5.2 years, respectively.
As of June 30, 2023, undiscounted minimum rental commitments under non-cancelable leases, for each of the next five years and total thereafter were as follows:
(In thousands)
Remaining 2023$7,587 
202418,660 
202519,507 
202620,151 
202720,755 
20283,479 
Thereafter— 
Undiscounted minimum rental commitments$90,139 
Interest(11,193)
Operating lease liabilities$78,946 
We provided our landlord a security deposit of $2.9 million as security for our leases, which is included within other non-current assets on our condensed consolidated balance sheet.
In August 2021, we entered into a long-term sublease agreement for 13,000 square feet of the office space at 38 Sidney Street, Cambridge, Massachusetts, with the term of the lease running through December 2024. In April 2022, we entered into a long-term sublease agreement for 27,000 square feet of the office space at 64 Sidney Street, Cambridge, Massachusetts, with the term of the lease running through April 2025. In May 2023, we entered into a long-term sublease agreement for 7,407 square feet of office space on the first floor of 64 Sidney Street, Cambridge, Massachusetts, with the term of the lease running through April 2025. We recorded operating sublease income of $1.4 million and $1.7 million for the three months ended June 30, 2023 and 2022, respectively, and $2.8 million and $1.7 million for the six months ended June 30, 2023 and 2022, respectively, in
other income, net in the condensed consolidated statements of operations. We received security deposits from our sublessees of approximately $1.2 million which is recorded within other non-current assets on our condensed consolidated balance sheet.

As of June 30, 2023, the future minimum lease payments to be received under the long-term sublease agreements were as follows:
(In thousands)
Remaining 2023$2,491 
20245,078 
20251,310 
Total$8,879